Contact Information

Dr. Oliver Siebert
Universität Tübingen

Fachbereich Mathematik
AB Mathematische Physik
Auf der Morgenstelle 10
72076 Tübingen

Raum: C5 P13

Tel: +49 (0)7071 29 72419
E-Mail: oliver.siebert  uni-tuebingen.de

Teaching

Summer Term 2023

• Lecture & Exercise Operator Algebras

Winter Term 2022/23

• Exercise Geoemtry in Physics

Summer Term 2022

• Exercise Advanced Topics in Mathematical Quantum Theory

• Exercise Analysis II/Mathematik für Physiker III

Winter Term 2021/22

• Exercise Mathematical Quantum Theory

• Repetitorium Lineare Algebra 2

Research Interests

• Models of non-relativistic QED
• Open quantum systems
• Many body quantum mechanics

Publications and Preprints

1. (with D. Hasler and B. Hinrichs) Non-Fock Ground States in the Translation-Invariant Nelson Model Revisited Non-Perturbatively ,  arXiv:2302.06998
   
2. (with D. Hasler) Ground States for Infrared Renormalized Translation-Invariant Non-Relativistic QED, arXiv:2207.09559
3. (with M. Lemm) Thermal Area Law for Lattice Bosons, arXiv:2207.07760
4. (with M. Lemm) Bose-Einstein condensation on hyperbolic spaces, J. Math. Phys. 63, 081903 (2022), arXiv:2202.01538
5. (with D. Hasler and B. Hinrichs) FKN Formula and Ground State Energy for the Spin Boson Model with External Magnetic Field,  Ann. Henri Poincaré 23(8): 2819-2853, 2022,  arXiv:2106.08659.
   
6. (with D. Hasler and B. Hinrichs) Correlation Bound for a One-Dimensional Continuous Long-Range Ising Model,  Stochastic Process. Appl. 146 (2022),  arXiv:2104.03013.
7. (with D. Hasler and B. Hinrichs) On Existence of Ground States in the Spin Boson Model ,  Commun. Math. Phys. 388, 419–433 (2021), arXiv:2102.13373.
8. (with D. Hasler) Ground States for translationally invariant Pauli-Fierz Models at zero Momentum, J. Funct. Anal. 284.1 (2023): 109725, arXiv:2007.01250.
9. (with D. Hasler) Thermal Ionization for Short-Range Potentials , J Stat Phys 182, 17 (2021), arXiv:2006.10874.

Short CV